Repeat device for automatic pianos and the like



I 8'. HEAD. REPEAT DEVICE FOR AUTOMATIC PIANOS AND THE LIKE.

APPLICATION FILED JULY 3h I918.

Patented Jan. 3,1922.

INIIENTOR 3 SHEETS-SHEET I- ATT IIWEI R. HEAD. REPEAT DEVICE FOR AUTOMATIC PIANOS AND THE LIKE.

APPLICATION FILED JULY 3M 1918.

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APPLICATION FILED JULY 31.1918.

Patented Jan. 3, 1922 7 a sums-sum s.

UNITED s'rnrssrnrsnr OFFICE.

ROBERT HEAD, OF NEVI YORK, N. Y., ASSIGNOR TO THE AEOLIAN COMPANY, A CORPO- RA'IIOIN' OF CONNECTICUT.

REPEAT nnvron non Auromn'rrc PIANOS AND THE"LIKE.

A ppfication filed July 31,

Toallwizomz't may concern: I I

Be it known that I, Bonner HEAD, citizen of nited States, residing at 558 est 164th Street, New York City, N. Y. have invented new and useful Improvements in Repeat Devices for Automatic Pianos and the like, of which the following is a specification.

My present invention relates to improvements in rewind and repeat devices for player-pianos and other automatic instruments using a music roll. Further the device is adapted to be set for any selected number of repeats and the instrument will then play the roll thatnumber of times and stop. a The drawings illustrate one of the prei'erred embodiments my invention is adapted to take; and in them Fig. 1 is a front elevation of the music roll box and adgacent motor portion of a player-piano embodying my present invention. The remaining views are on an enlarged scale as compared w1th rig. 1. In them, Figs. 2, 3 and 4 are respectively vertical sections partly in elevation on the lines 9.2, 3-3 and 4- 1 in Fig. 1 looking in the direction of the arrows; F 5 is a horizontal'section partly in plan onthe line 5-5 in Fig. 1; Fig. 61s a horizontal section partly in plan on the line 6-G Fig. 2; Fig. 7 is a diagrammatic. perspective view of partstaken from Fig. 1 pertaining to my invention; and Figs. 8 to inclusive are diagrammatic face views (looking from left to right) of the same s shown in successively difi'erent operexplained later, certain parts sorocket wheel 7 loose on the shaft. 8 is the usual clutch-lever pivotally-supported Specification of Letters Patent.

figures being displaced along the.

Patented Jan. 3, 1922. 1913. Serial No. 247,542.

at 9 and operable from the key-slip in wellknown manner to shift the gear 6 to the left into the position shown in Fig. 1 into mesh with the gear 10 on the drivingspindle 11 of the take-up spool to driving the music-sheet 2 in playing direction downwardly. across the tracker-board 12. Reversely, the said lever 8 is operable to shift the gear 6 to the right out of mesh with the said gear 10 and into clutch with the aforesaid loose sprocket-wheel 7 through the usual clutch-pins 141 with the result that the motor then drives the'music-roll (instead of the take-up spool) through the chain 15 and sprocket-wheel 16 on the music-roll spindle 17 to rewind the musicsheet back on to the music-roll.

The air-tension for driving the motor 3 and also for operating the sounding-devices is" derived in well-known manner from exhausters (not shown) driven by an electricmotor (not shown) controlled by an electric switch 18 mounted as shown in Fig. 1 to the right of the piano-casing. This. switch has an operating plunger l8 projecting through a guide-hole in the cheek 1 of music-box and within said box is provided with a knob 18". When this knob and plunger are pulled to the left in Fig. 1 an electric circuit is made through the aforesaid switch 18 to drive the electric-motor to pneumatically drive the motor 3' and otherwise play the instrument; vice versa pushing the knobbed plunger to the right breaks the circuit through'the switch and stops the operation of the music-sheet and the playing of the piano.

19 is a crank-arm projecting from the plunger 18 which plunger by free to turn about terfering with its aforesaid switch operating function. For this and the following part of the description see especially Figs.

521ml 7 in connection with Fig. 1. 20

is a pin projecting from the arm 19 parallel 18 and 21 is a link connecting the its own axis without in with I arm 19 with a shoe or ride-r 22 yieldingly held against the periphery of the disc 23 by means of a coiled tension spring 24 pulling said shoe towards the hub of said disc the Way is l 23, which latter is fixed on the music-roll spindle 17.

When the music-roll is being played, the

parts are positioned as in Fig. 1 (and the related Figs. 3, 5 and 7 with the disc 23 turning in the direction of the arrow in Fig. 7 and frictionally carrying the shoe 22 and crank-arm 19 into the position shown in said figures,beyond which position, however, they cannot go- (although the disc 23 keeps on turning) because a part 29 on the plunger 18 abuts against a stop 25 (Figs. 4 and 7, etc). This stop is a projecting tooth on the underside of a member 26 pivoted at 26 to the movable board 27 of thebellows 28 so as to pivot freely in a- 19 to the left until stopped in the position shown in Fig. 8 by the pin 20 (of. Figs. 5 and 7) on the arm 19 striking against the periphery ofa repeat-counting disc 30; This disc is fixedly secured to a rod 31 suitably supported to be rotatably adjusted or twisted about its own axis, one end of said rod projecting through the right cheek 1 of the music-roll box wherein there is a pointer 32 which. rigidly projects from the rod and plays over a stationary dial 33 secured to.

the cheek 1 A knob 3% on the end of this IfOd. 31,permits it to be twisted to carry the pointer into registry-with the various marks on the dial,- which it will be seen is marked Repeatvcoupled with a series 'of numbers rindicating the number of repeats. V hen the pointer isadjusted to one of the numbers, the mechanism automatically plays and rewinds the music-roll that number of times andthen stops theinstrumentQ When the pointer is directed to that part of' the dial marked Continuous, "the device automatically repeats the roll indefinitely until the instrument is manually stopped.

The counting-disc 30 performs its function of automatically counting the number .or" repeatsan'dthen stopping the instrument b'y being provided with ratchet-teeth at 35 and with a cut-away portion or recess at 36. Thelratchet 37 may consist of a piece of light spring-wire bent into the shape best shown vin Figs. 5 and 7 and secured to the arm 19 by a pin 38. The teeth 35 correspond with the numbers on the dial and are so placed that every stroke of the arm 19 towards the counting-disc 3O (which itwill be remembered takes place on the rewind) causes the ratchet 37 to rotate the disc 30 and the pointer 32 to the next lower number on the be the last rewind and that on its completion the instrument will automatlcally stop.

From the description thus far it will be noted that three positions have been described for the crank-arm19 which may be conveniently designated A, B andC. The A position is best shown in Fig. 7 (although also shown in Figs. 1 to 5 inclusive and in Fig. 9) and always exists when the rnusicsheet is traveling inplaying direction with the disc 23 carrying the shoe 22 and the arm 19 forward until further rotation of the switch-plunger 18 about its own. axis is stopped by the offset 29hitting against the stop25. The degree of upward swing of the aforesaid off-set 29 determined by the position of the arm 30, also determines the degree of upward lift of the pivoted mem ber 26 so that said member has the position shown in Fig.7, this being its highest posi tion conveniently designated A becausecorresponding to the A position of the arm 19. The A at the right of Fig. 7 recall these facts.

On everyrewind of themusic-roll except the last rewind, it will be remembered that the incidental rotation of the disc 23' is such that the shoe 22 and arm 19 are carried rearwardly: until the pin 20 on the arm'strikes against the periphery of the counting-disc 30. This position of said arm persists during therewind and may be called its B position. It results in a corresponding, partial rotation of the switch-plunger 18 and a corresponding, downward swing ofthe off-set 29 and of the-pivoted member 26 resting on said off-set. The letter.l3 adjacent Fig. 8

conveniently designates this second or B position of all these parts.

Finally on the last rewind prior to the automatic stopping of the instrument, it will be recalled that the incidental rotation of the disc 23 carries the'shoe 22 and arm 19 rearwardly, just as before, butthistime the pin 20 on the arm enters the recess 36 in the counting-disc 30, so that this time the arm 19' swings through'agreater angle into a new i or third position which is shown inFig. 10

serves to to the ,pivoted member 26 is carried by or with the .mately the operative pneumatic connections bellows 28 will be described, but for; the present it is s'uflicient to state that this bellows is momentarily collapsed automatically from the music-sheet at the end of each playing and at the endof each rewind. I

he member 26 in its A position with the bellows expanded is located in front of the bent-over upperend of the lever 40 pivotally supported at 41 and operatively connected by the link 42 to the clutch-lever 8. When the parts arein their assumed A position, it will be noted that the music roll is being played. Whennow' at the end of the playing, a special perforation in the momentarily col-lapses the bellows 28, the movable board of the latter carries the aforesaid lever 40, swinging its lower end to the left in Fig. 1 to operate the clutch to disconnect the motor 3 from the take-up spool 2 and instead connect it with the musicroll 2 so that the played music-roll is' now automatically rewound.

Next another lever 43 is supported at 41 with its bent-over upperend in the path of the member 26 when in its B posltion (cf. Fig. 8). This lever 43 is operatively connected as shown in Fig. 1 by a link 44 tothe clutch-lever 8. When the upper end of the previously described lever 40 has been pressed to the right in Fig. 1 by the bellows to bring the pins 14-14 into clutch, and is left in that position to produce a rewind as heretofore explained,the effect on the lever 43 is that the link 44 automatically pullsits upper end to left in Fig. 1 into a position immediately in back of the B position of the pivoted member 26 on the bellows ready to be pushed to the right (viz., into the position shown for it at 43 in Fig. 1) by the next collapse of the bellows to operate the clutchlever 8 into the position shown in Fig. 1 in order to drive the take-up spool once more from the motor to replay the music-sheet. In its lowest or 0 position (Fig. 10), the end of the pivoted member 26 is located immediately to the left of a fixed collar 45 on the switch-operating plunger 18 (cf. Figs. 1, 7 and 10). It will be remembered that the C position occurs on the rewind, therefore when toward the end of the rewind the music-sheet momentarily collapses the bellows 28, the latter carries the member 26 against the aforesaid collar. 45, pushing the plunger 18 to the right in Fig. 1 and operating the switch to disconnect the previously provided pivotally described electric motor and. thereby auto A, B and C, of this- 'secutively show music sheet member 26 into their A position. said member 26 against the upper-end of'the roll spindle 17 and ,matic'ally stop the further performance of the instrument,this movement of the plunger 183 being insufficient to disengage the ratchet 37 from the disk 30. V

The diagrams, Figs. 7 to 10 inclusive conthe relative position of the parts, when'theo'perator has: adjusted the pointer-32 on the dial 33 for two repeats. This sets the device so that, it will automatically play the selection twice and then stop the instrument after thesecond rewind of the music-sheet- Fig. ,7 indicates the position of the parts during the first playing of the sheet. Fig. 1 and the sectional figures belonging to it, also show the parts as positioned during this first playing ofv the sheet. The pneumaticmotor 3 is driving the take-up spool 2 through the clutch 6, and the resulting rotation of the music-roll spindle 17 and the disk 23 has brought the parts including the pivoted (Fig. 7.)

At the end of the first playing, the musicsheet automatically collapses the bellows 28 for a moment and the member 26 striking against the lever 40 reverses the clutch so that the drive from the motor 3 is now through the pins 1414 upon the music-roll spool to rewind the sheet. This is the first rewind and the reversed rotation of the disk 23 puts the parts in their B position as in Fig. 8. Also note that the ratchet 37 on the arm 19in going into its B position has rotated the counting-disk 30 and the pointer 32 until the latter now points to the numeral 1 on the fixed dial 33. In other words, one playing has been counted off and the recess 36 in the counting-disk has been advanced that much nearer the C or automatic stopping position shown in Fig. 10.

The aforesaid first rewinding continues with the parts as in Fig. 8 until means (hereafter to be described) at or towards the beginning of the 7 sheet automatically collapses the bellows 28 for a moment, whereupon the member 26 operates the lever 43 to return the clutch 6 to its original condition wherein the motor 3 drives the takeupspool and the sheet is thereby started on its second playing. This second playing, in view of the explanation in connection with F i2. 7, returns the parts to the A position shown in Fig. 9.

This second playing continues until the bellows-operating end-perforation of the sheet is reached, whereupon said bellows again momentarily collapses, and the member 26 being in its A position, again operates the lever 40 to start the second rewinding of the music-sheet. This of course immediately reverses the rotation of the musicdisc 23, so that the arm 37 carry the counting-disc 32 to zero on the dial with 19 and ratchet 30 and pointed the recess 36 'positioned 'so that it receives the pin 20011 the arm 19, whereby the parts,

including the member 26, are carried into their G position shown in Fig. 10;. The automatic: collapse of the bellows 28 at the *endof this second rewind, carries the part 26xagainst'the shoulder45 on theswitchoperatingplunger and thereby automatically throwstthe switch to stop the instrument;

The drawings show the device designed fora maximuinfot three automatic repeats- (iollowed by a cut-ofi' or stop)' but the number can obviously be increased. For; example, to increase the number to 6, it is; only necessary to proportion the parts so' that the throw of the ratchet 37 on each rewind will be only one half that shown,

whereby thecounting-disc 30 is only rotated one-half its present rotation, six ratchet teeth being then used on said counting-disc spaced only half as tar apart as those shown. This and other ways to increase the number of automatic repeats will obviously suggestthemselves but the-three shown will ordinarily be sufiicient in practice.

Whenthe pointer32 is turned so as to point to continuous on the dial, thenthe device causes the instrument to repeat the roll indefinitely until manually stopped. This is because the teeth 35 0n the counting disc 30 are then placed out of the reach of the ratchet 37 so that the latter now slides idly on the peripheryofthe disc 30 without turning it and the pin'20 at every rewind abuts against the periphery of said disc-and never enters the recess 36 to put the'parts into the G position to throw the switch. a

The particular means may vary for automatically operating the bellows28 atortowards the end of each playing and rewinding of the music-sheet or part thereof. In the drawings I show for operating the bellows at the end of each playing, a tracker-duct 46, Fig. 1, connected by tubing 47 as usual in the art to a valve-box 48 which in turn is connected, as shown, to the exhaust by tube 49 and to the bellows 28 by tube 50. The tracker-duct 46 is kept closed by the music-sheet until the place is reached during the playing where it is desired for the playing to stop and the rewinding to,

commence. At this place a perforation5l is provided in the sheet, (although of course in practice it will ordinarily not be located so near thebeginning of thesheet) which,

when it registers with tracker-duct 46, op

I Finally, I will describe the illustratednovel means for automatically stopping the;

'rewind at thebeginning ot' the sheet and 4 starting the-replaying without using a specialperforation in the music-sheet for this purpose, although of course this might be I done as analternative method; However, I

have preferred to show the following de.-'"

bow stationarily mounted in the music-roll box at the right end of the take up spool 2. The mouth of the vertical branch of this pivotally supported at 54' and having a'lug 55 extending laterally from its rear end towards the hollow existing-in the'right-han'd end of the take-up spool. Thehorizontal g branch of the elbow is operatively connected by apiece of tubing 56 leading under the pouch in the valve-box 48 in the same way that the tube 47 connects the tracker-duct 46v thereto. Located circiunferentially within the hollow-end of the take-up spool is a curved metal strip 57 fixedly secured in said position by detents, one of which is vices for this purpose :'52 is a tubular el elbow constitutes a port which is kept normally closed by .a spring-pressed valve 53" shown at 57. This strip may be about 270 7 long, "as shownin Fig. 2. Located in the space between the ends of the fixed strip 57 is another strip 57 which is radially movable relatively to the take-up spool and strip 57. This strip'57 has one end located ad'acent one end of the strip 57 as in Fig. 2; audits opposite end is bent outwardly and then extends. circumterentially as showngin said Fig. 2. The radial movement of this strip 57 is provided for by its being fixed on a radially slidable pin 58 between the enlarged head 01"- said pin and a light coiled compression spring59 surrounding the shank of the pin. The pin 58 in turn is supported for its said radialslidable movement in suitable bearing-openings provided respectively in the outer-shell and in the hub of the take-up spool adjacent the right-hand flange (of. Fig. l) of the spool, so that the head of the pin when engaged by the face of the music-sheet will be pressed into the take-up spool flush with its periphery. Also, at such time the part 57 will be carried radially inward along with the pin into a position wherein it will pass freely 7 under the described lug 55 of the valve when the take-up spool is rotated. This is the normal condition as long as the face of the music-sheet covers the head of tne pin 58; and persiststhroughout except, when towards the end of the rewind, the pointed front-end of the sheet is reached at the take-up spool as in Figs. 1,. 2 and 6, whereby the sheet no longer covers and presses inwardly the pin 58 and the part 57 At this time, the part 57* springs into its outward position of Fig. 2 and its bent forward end passes over the top of the lug and cams it down so that said lug inside the strip 57 whereby the valve 53 is lifted off its port for a suflicient interval to operate the valve-box 48 and in turn collapse the bellows 28 to reverse the clutch-lever 8 (Fig. l) to start replaying the sheet before it can detach itself from the hook of the take-up spool." Immediately the replaying begins, the sheet winding on the take-up spool again covers andpresses inwardly the pin 58 carrying with it the part 57* so that said end during the rotations of the take-up spool passes freely below the valve-lug 55 without disturbing the normal closed position of the valve on its ort. r p Of course changescan be made, additional to those'already indicated, in the illustrated embodiment of my invention Without departing from the spirit of said invention and of the annexedclaims.

What I claim is; 1. In combination with the music-roll, take-up spool, motor and reversing means of an automatic musical instrument, the musicsheet having a narrowed front end,a-pneu mat-ic for operating said reversing means; a port and valve therefor controlling said pneumatic; a movablepart carried bythe take-up spool toward one end having an inner position when it is covered and pressed 'inwardly'by the music-sheet, and an outer position when it is not covered by the musicsheet and is released, saidmovable part be- 5 ing operatively related to. the. valve.

I 2. In combination with the music-roll,

take-up spool, motor and reversing means of an automatic musical instrument, the music-sheet having a narrowed front end, a movable part carriedby the take-up spool toward one end having an inner position when it is covered and pressed inwardly .by the music-sheet, and an outer position when it is not'covered by the music-sheetand is released, said movable part being operatively related to the reversing means.

8. In combination with the pairj'of spools and the music-sheet 'operatively related thereto in an automatic musical instrument, the music-sheet comprising a narrowed portion,a controllable means; and amovable part carried by one of said spools having an inner-position whenit is covered and pressed inwardly by the music-sheet, and an outer position when it is not covered by the" music-sheet and is released, said movable part being related to said controllable means to control its operation. 4. In combination with the pair of spools and the music-sheet operatively related thereto in an automatic musical instrument, the music-sheet compr1s1ng a narrowed portion,'- rewinding means and a movable part assuming one position when the narrowed portion of the music-sheet is adjacent to it and another position when at the unnarrowed part of themusic-sheet, said movable part being related to said rewinding means to control its operation, and repeating means capable of being set manually for difiercnt numbers of repeats.

5. In combination with the motor, reve ing means, pair of spools and the musicsheet operatively related thereto in an automatic' musical instrument, the music-sheet comprising a narrowed portion,a movable partassuming one position when the narrowed portion of the music-sheet is adjacent to it and another position when at the unnarowed part of the music-sheet, said movable part being operatively related to the reversing means to control its operation, and repeating means capable of being set manually for different numbers of repeats.

i 6. In combination with the music-roll, take-up spool, motor, motor cut-off, and reversing means of an automatic musical instrument, a rotary part partaking of the motion of the music-roll in playing and ,rewinding; a rider carried with the rotary part in either direction until stopped when it slips thereon; a crank-arm reciprocated by the rider; a stop for the crank-arm after it has been swung a limited distance into one position by the rider during playing, a recessed rotatable disc whose periphery where unrecessed stops the crank-arm in a second position' when the crank arm is swung by the rider in rewinding, and where, recessed, allows it to' assume a third position;

means which gives the disc a fraction of a r0 tation for each rewinding swing oh the:

crank-arm until it reaches the recessed por-' able member is in its first position refer-red to and. to effect playing when the member is in its second position, and to operate the motor cut-ofi' when the member is in its third position.

7. In combination with the music-roll, take-up spool, motor, motor cut-ofi, and reversing means of an automatic musical instrument,a rotary part partaking of the motion of the music-roll and takeup spool in playing and vrewinding; means carried with the rotary part ineither direction until stopped whereupon said means slips on the rotary part;ra stop and a recessed rotatable disc forming end limits to said movements of the carried means andwhereby it is adapted t assume three different positions; means for giving the disc fractional, rotarymovements in the same direction from the movements of the carried means until the latter reaches the recessed portion of the disc; manual means for preliminarily setting the disc for a selected number f repeats; means controlled'from the music-sheet so as tobe operated at predetermined times relatively to such music roll, said means being operatively related to the reversing means and the motor cut-off through the aforesaid carried. means so that when thelatter is in one position, the reversing means is operated to et fect rewinding; when in a secondposition, the reversing means is operated to, efiect playing; and when in 'a third position the motor cut-off is operated.

8. In" combination with the muslc-roll,

take-up spool, motor, motor cut-0E, and

reversing means of an automatic musical instrument, a rotary part partaking of the motion of the music-roll and take-up spool in playing and rewindlng; IIIGZLIlSCfiI'IlGClWliDlL the rotary part in either direction until stopped; a stop and a recessed movable part forming end limitsto said movements of the carried means and whereby it assumes three different positions; means for giving therece'ssed part increments of movement in the same direction from the movements ofthe carried means until the latter reaches the:

recess of said part;'manual means for preliminarily setting the recessed part for a selected'number of repeats; means controlled from the music-sheet so as to be operated at v predetermined times relativelylto said musicroll, said means being operatively related to' the reversing means and the motor cut-elf through the aforesaid carried means so that when the latter is in one position, the revers- 7 ring means is operated to eifect rewinding;

'when in a second posit on, the reversing means is operated to efl'ectplaying, and when in a third position the motor cut-oil is operated,

.9. In combination with the music-sheet,

motor, motor cut-off, and reversing meansof an automatic musical instrument, means carried in one direction in playing the music-sheet and inthe opposite dlrection 1n .rewmdmg it; stops forming end limits to said movements of the carried means, one of said stops being movable and having an upper and a lower level in its active face,

so that the two stops permit the carried means to assume three different positions; means for feeding the movable stop in one direction from themovements of the carried means until a difl'erent level in the face of the stop ispresente'd to the carried means; manual means forpreliminarily setting the movable stop for a selected numberof repeats; means controlled from the musicsheetso as to be'operated at predetermined times relatively to such sheet, said means being operatively" related to the reversing means and the motor a cut-off through the aforesaid carr ed means so that when the lat- ,ter is in one of its positions, the reversing controlled from the music-sheet so as to be operated at predetermined times relatively to said sheet, said meansbeing operatively 7 related to the reversing means through the aforesaid carried .means so that when the latter is stopped in one of 1ts pos1tions,the

reversing means is operated to effect rewinding; and when it is stopped in its other position, the reversing means is operated to efiect playing.

11, lln comb nation'with the music-sheet;

motor,'motor cut-off, and reversing means of an automatic musicalinstrument, means carried in one direction n playlng the music she et and in the opposite direction in rewinding it; stops formingend limits to said movements of the carried means; a

power-element controlled from the music;

sheet so as to be operated at predetermined times relatively to said sheet; af member. which is ad uStable into dilferent posltions by. the aforesaidcarried means corresponding to the different positions of saidmeans, said power-element and member being operatively' related to the reversing means to effect rewinding when the adjustable member is in one of its positions andto effect playing when in its other position.

12. In combination with the music-slice motor, motor cut-off, and reversing means of an automatic musical instrument, means carried in, one direction in playing the music-sheet and in theopposite direction in rewinding'it; stops forming end limits to said movements of the carried means; -means controlled from the music-sheet so when the latter isstopped in one of'its positions, the reversing means is operated to eifect rewindlng; and when it 1s stopped in its other position, the reversing means is operated to effect playing; and means which automatically counts the number of repeats and which, after the desired number has occurred, withdraws one of the stops, permitting the carried means to assum a third position leading to the operation of the motor cut-off.

18. In combination with the music-sheet, motor, motor cut-off, and reversing means of an automatic musical instrument, means carried in one direction in playing the music-sheet and in the opposite direction in rewinding it; stops forming end limits of said movements of the carried means; a power-element controlled from the musicsheet so as to be operated at predetermined times relatively to said sheet; a member which is adjustable into different positions by the aforesaid carried means corresponding to the different positions of sald means, said power-element and member being operatively related to the reversing means to effect rewinding when the adjustable member is in one of its positions, and to effect playing when in its other position; and means which automatically counts the number of repeats and which after the desired number has occurred, withdraws one of the stops to permit both the carried means and th adjustable member to assume third positions respectively, whereby the latter actuates the motor cut-off when the power-element is operated.

1%. In combination with the tracker-bar, motor, motor cut-off, reversing means, pair of spools and the music-sheet operatively related thereto in an automatic musical lnstrument, the music-sheet having a narrowed front end and being perforated at a desired ending place to register with a tracker-bar duct,means carried in one direction 1n playing the music-sheet and in the opposite direction in rewinding it; stops forming end limits to said movements of the carried means; a pneumatic operatively related to the reversing means and the motor cut-off through the aforesaid carried means so that whenthe latter is stopped in one of its positions, the reversing means is operated to effect rewinding and when it is stopped in its other position, the reversing means is operated to effect playing; operative connections between the aforesaid tracker-bar duct and the pneumatic; and a movable part located at themusic-sheet take-up spool assuming one position when the narrowed front end of the music-sheet is adjacent to it and another position when at the unnarrowed body portion of the sheet, said movable part being operatively related to the aforesaid pneumatic to bring about its operation when the movable part is at the narrowed. front end of the sheet.

15. In combination with the tracker-bar, motor, motor cut-off, reversing means, pair of spools and the music-sheet operatively related thereto in an automatic musical instrument, the music-sheet having a narrowed front end and being perforated at a desired ending. place to register with a tracker-bar duct,means carried in one direction in playing the music-sheet and in the opposite direction in rewinding it; stops forming end limits to said movements of the carried means; a pneumatic operatively related to the reversing means and the motor cut-off through the aforesaid carried means so that when the latter is stopped in one of its positions, the reversing means is operated to effect rewinding and when it is stopped in its other position, the reversing means is operated t effect playing; operative connections between the aforesaid tracker-bar duct and the pneumatic; a movable part located at the music-sheet take-up spool assuming one position when the narrowed front end of the music-sheet is adjacent to it and another position when at the unnarrowed body portion of the sheet, said movable part being operatively related to the aforesaid pneumatic to bring about its operation when the movable part is at the narrowed front end of the sheet; and means which automatically counts the number of repeats and which, after the desired number has occurred, withdraws one of the stops, permitting the carried means to assume a third position leading to the operation of the motor cut-off.

16. In an automatic musical instrument, the combination with the motor, the pair of spools, the music sheet operatively related to the spools, and reversing means for causmg the music sheet to be advanced and rewound by the motor, of a device controlled by the music sheet for setting the reversing means to rewind such sheet, a device also controlled by the sheet for setting the re versing means to advance the sheet for play- 1ng repeats, and means capable of being set manually to determine the different numbers of repeats to be played.

17. In an automatic musical instrument, the combination with the motor, the pair of spools, the music sheet operatively related to the spools, and reversing means for causing the music sheet to be advanced and rewound by the motor, of a device controlled by the music sheet for setting the reversing means to rewind such sheet, a device also controlled by the music sheet for setting the reversing means to advance the music sheet, and selecting means capable of being set to determine the diflerent numbers of repeats to be played, said selecting means governing the action of said device which controls the advance of the music sheet.

18. In an automat1c musical instrument,

' r the combination with the motor, the pair of spools the music sheet operatively related to the spools, and reversing means for causlng the music sheet to be advanced and rewound' by the motor, of a device controlled by the music sheet for setting the reversing means to rewind such sheet, a device also controlled by the music sheet for setting the reversing means to advance the sheet for playing re- 10 peats, and selecting means capable of being 

